Valve-lifter.



F; A. P'EQIIEGNAT.

VALVE LIFTER. APPLICATION FILED ocT. 31. 19u.

Patented Apr. 29, 1919.

2 SHEETS-SHEET l.

*III III- l WITN ESSES ATTO R N EY F. A. PEQUEGNAT.

VALVE umn. APPLICATION FILED OCT. 3l. 1917.

.Patented Apr. 29, 1919.

2 SHEETS-SHEET 2.

INVENTOR WITNESSES ATTORN EY FRANK A. PEQUEG-NAT, 0F RIVERSIDE, CALIFORNIA.

VALVE-LIFTER.

Specification of Letters Patent.

Patented Apr. 29, 11919.

Application led October 31, 1917. Serial No 199,494.

To all whom it may concern Beit known that I, FRANK A. PEQUEGNAT, a citizen of the United States, residing at Riverside, in the county of Riverside and State of California, have invented a new and useful Valve-Lifter, of which the following is a specification.

The invention relates to a valve lifting device or tool and more particularly to the class of valve spring compressors or removers.

The primary object of the .invention is the `provision of a tool or device of this character wherein the valves in gasolene motors can be readily and conveniently removed with despatch, for gaining access to certain parts of the motor, for replacing the valve, and without the necessity of long and tedious work as is usual.

Another object of the invent-ion is the provision of a device or tool of this character, wherein the same may be handled with facility, and the jaws thereof will be parallel with each other at all heights in the adjustment of the same, and will be retained in such position. The parallelism of the jaws permits the engagement thereof with the valve spring when closely tted in the motor,

and alsol does not cramp the spring seat and raise the stem of the valve and the key with it, and it also enables full view of the parts by the operator.

A further object of the invention is the provision of a device or tool of this character, wherein the aws are reversible and interchangeable, thereby enabling` different sizes and shapes of jaws to be employed.

A still further object of the invention is the provision of a device or tool of this character, wherein the required leverage is had for compressing the spring about the valve stem, without possibility of pushing the spring and seat out of line, or off of valve tappet, while the parallel relation of the jaws permits the engagement thereof in restricted space, and avoids the bending of the valve stem, or the sidewise displacement of the spring in the use thereof.

A still further o'bject of the invention is" the provision of a. tool or device of this character, which iscomparatively simple in construction, thoroughly reliable and eflicient in its operation, strong, durable, readily and easily adjusted, and inexpensive in manufacture.

lith these and other objects in view, the

invention consists in the features of construct1on,`combination and arrangement of parts, as will be hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the accompanying drawings Figure l, is a side elevation of a valve spring lifter constructed in accordance with the invention, showing by full lines the levers and jaws separated for the compression of the valve spring, while by dotted lines `are shown the several steps of movement of the levers in the operation 0f the tool or device.

Fig. 2, is a top plan view ofthe tool or device removed.

Fig. 3, is a fragmentary vertical longitudinal sectional view through the tool or device.

Fig. 1L, is a side elevation, partly in section of the tool or device showing a slight modification including the extension members and jaws.

Fig. 5, is a removed.

Fig. 6, is an elevation of the jaw showing a portion thereof partly broken away.

Fig. 7 is a perspective view of one of the extension members.

Fig. 8, is a plan view sho-wing different form of jaw.

Fig. 9, is a side elevation thereof.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring to the drawings in detail, A, designates a portion of an internal combustion engine, B, a valve supported by a stem C, and D a coiled spring surrounding the valve stem, which has one end working against a cup washer E, loosely engaged on the stem C, and supported upon a cot-ter pin F, at a suitaible position for carrying said coiled spring to cause the same to exert the necessary tension on the valve. The lower end of the valve stem C, is slid ably mounted in a stationary support G, and is adapted to be engaged by the rotatable cam for actuating the valve.

The tool or device forming the subject matter of this invention is designed to compress the coiled spring D, for relieving the tension on the valve B, so that the cotter pin F, may be easily withdrawn, and the cup washer E, removed to permit the ready removal of the valve or after replacing the plan View of one of the jaws valve, the washer may be restored to its proper position, and the cotter pin can be conveniently inserted in the valve pin.

'The tool or device comprises complementary levers 10 and 11, respectively, which for a major portion of their length are straight, while the remaining portions are formed with bights or bents 12, and the handle extremities 13, which are offset in parallel relation to each other with respect to the straight major portions of the levers 10 and 11, which are also parallel with one another. The levers 10 and 11, opposite the handle extremities 13, thereof are formed with reduced ends 14, on which are permanentlyT fitted socket sleeves 15, having supported at th'e outer sides thereof, latches or catches 16, which are formed with inbent nibs 17, working through the sleeves to project within the same, the latches or catches being supported upon screws 18, threaded in the sleeves 15, and the reduced ends 14 of the levers 10 and 11, and these screws 18, carry coiled tension springs 19, for holding the latches or catches 16, in position for a purpose hereinafter fully described.

Interchangeably and reversibly fitted within the socket sleeves 15, are the stems 20, of bifurcated jaws 21, which are flat and relatively thin, the bifurcation 22, in each jaw 21, being adapted to receive the valve stem C, so that said jaws in the use of the tool or `device will straddle the valve stem for compressing the valve spring D, thereon in a manner presently described. v

In opposite faces of the stems 20, on the jaws 21, are indentations 23, in which are adapted to engage the nibs 17 of the latches or catches 16, the opposite indentations 23 in stem 20, being designed to permit the reversal of the jaw 21, and for fastening the stem in the socket sleeve 15, on each lever of the tool or device, without possibility of the jaws becoming accidentally separated from the levers.

It will be apparent, that the jaws can be detached for the interchanging of the same, so that different sizes and shapes of jaws can be used in the tool or device. The latches or catches 16, are manually released for the detachment of the jaws from the levers 10 and 11 of the tool or device. The latches or catches 16, have their finger engaging ends outwardly curled, and on depressing on these ends, the latches or catches will rock upon the socket sleeves 15, against the resistance of the springs 19, carried by the screws 18, for the disengagement of the nibs 17, from the indentations 23, in the stems 20, of the jaws 21, thereby freeing the same.

Fixed in the lever 10, spaced from the socket sleeve 15, thereon is a guide post or pin 24:, while formed in the jaw 11, is a guide eye or opening 25, receiving the post or pin 24, and in this manner the levers 10 and 11, are prevented from longitudinal displacement relative to each other; but the lever 11, by reason of the formation of the eye or opening 25, can be readily rocked upon the post or pin 24, in the operation of the tool or device.

Formed in the levers 10 and 11, on opposite sides of the post or pin 24, are slots 26, through which are passed rack bars 27, swingingly supported upon pivots 28, located within the slots 26, in the lever 10, and mounted transversely therein. Within the slots 26, in the lever 11, are fulcrum pins 29, which are mounted transversely in said lever, and coact with the rack teeth 30, formed in the rack bars 27, for sustaining the `levers 10 and 11 in adjusted separated relation to each other, and also for the coaction of the bars 27, with the fulcrum pins 29, to effect the step by step movement in the separation of the levers when compressing the valve spring D, in the operation of the tool or device.

The rack bars 27, at their pivoted ends are formed with extensions 31, to which are connected coiled retractile springs 32 which are active to spread the raclr bars 27, apart at their opposite ends for the positive locking engagement of the rack teeth 30, thereon with the fulcrum pins 29, when the levers 10 and 11 are `manipulated in the operation of the tool or device.

Carried on the upper side of the lever 11, is a releasing slide 33, formed with guide slots 34, in which are engaged guide screws 35, threaded in the said lever 11, the slide being formed with an abutment 36, at the end next to one of the rack bars 27, while at the opposite end of said slide, is a finger engaging ear or thumhpiece`37, in convenient reach of the hand of the operator of the tool, when grasping the handle extremities 18 for the operation of the levers 10 and 11, of said tool or device. The slide 323, when pushed upon in one direction, disengages one of the rack bars 30, from the fulcrum pin 29, so that the lever 11 can be rocked on the other fulcrum pin 29, engaged with the other rack bar 30, to the inclined position, as shown by dotted lines at a, in Fig. 1 of the drawings this being the initial movement of said lever 11, in the operation of the tool or device when used for compressing the valve spring D.

On the initial movement of the lever 11, when downward pressure is exerted upon its handle extremity 13, the said lever will rock to the position shown by dotted lines, at b, in Fig. 1 of the drawing, which is the next step in the movement of said lever when the tool or device is being operated for the lifting of the valve spring D. This operation when continued, will separate the levers 10 and 11, the desired distance Afrom il'x each other, for the proper compressing of the valve spring D, to permit the easy removal of the cotter pin F, from the valve stem C, and it will be noted that the levers l0 and 11, when adjusted for supporting the same, will be in true parallel relation to each other, and likewise the jaws 21, will be parallel to each other, so that there is no possibility of bending the valve stem C, or unseating the valve spring D, in the compression thereof when it is desired to remove the valve B, from the engine.l This parallel relation of the levers l0 and 1l, and the jaws 2l, avoids any obstruction to the view of the operator of the tool or device, thereby giving him a clear view of the work to be done, as will be clearly apparent.

The provision for the reversal of the jaws 21, permits the tool or device to be used as a universal valve remover, and the parallel relationship of the jaws with respect to each other, permits the lifting of valve springs where set close in an engine, and without any wedging effect upon the spring or support G,

r for the valve stem, or the distorting sidewise of either the stem or the valve spring.

In Fig. 4 of the drawing, there is shown a slight modification of the invention, wherein there is employed a pair of extension members 38, which are provided with sleeve like socket ends for the reception of the stems 20, of the jaws 2l, and the reduced shank ends 39 for detachable engagement in the socket sleeve 15, on the levers l0 and 11 of the tool or device. These extension members when used, increase the length of the levers 10 and 11, so that increased leverage may be had when occasion requires.

In Figs. 8 and 9, there is shown a modified form of jaw 40, which is of considerably less size than the jaw 2l, and of a dilerent shape with respect to the latter, therefore, it is to be understood that varying sizes of jaws of different shapes may be employed when necessity demands.

On reversing the jaws to the position shown in Fig. 4 of the drawings, it enables the taking up of space between the valve spring or support G, and the valve spring washer E, when resting upon the cott-er pin l?, should the occasion require.

On bringing the rack bars 27, toward each other by pressing together the free ends thereof, the lever 11, will be free to approach the lever 10, and when it is desired to lower the valve spring D, the rack bar 27, at the right hand side of the post or pin 24, is disengaged fromthe fulcrum pin 29, to engage the next lowermost tooth of said bar, and thereafter on releasing the other rack bar from the other fulcrum pin, the lever 11, will be lowered into parallel relation with the lever 10, and by repeating this operation, said levers will be brought together or toward each other.

Secured in the free end of one of the rack bars 27, is a stop pin 41, which limits the upward movement of the lever 11, relative to the lever l0 of the tool or device.

From the foregoing it is thought that the construction and manner of operation of the ltool or device will be clearly understood, and

therefore, a more extended explanation has been omitted.

What is claimed is:

l. A valve lifter comprising a pair of levers, jaws connected with the levers, means carried by one lever and engaged by the other lever for adjusting said levers and holding the jaws in parallel relation to each other in their adjusted position, and means acting upon the second-named means to permit step-by-step movement to be imparted to one of the levers.

2. A valve lifter comprising a pair of levers, relatively thin jaws connected with the levers, means for securing the jaws to said levers, means carried by one lever and engaged by the other lever for adjustin said levers and holding the jaws in parallelrelation to each other in their adjusted position, and means acting upon the secondnamed means to permit step-by-step movement to be imparted to one of the levers.

3. A valve lifter comprising a pair of levers, Hat jaws detaehably and reversibly connected with said levers, means carried by one lever and engaged by the other lever for adjusting said levers and holding the jaws in parallel relation to each other, a socket sleeve cn each lever, a shank on each jaw for engagement in the socket sleeve, and catches carried by the sleeves for detachably engaging the shanks.

4. A valve lifter comprising a pair of levers, fiat jaws detachably and reversibly connected with said levers, means carried by one lever and engaged by the other lever for adjusting said levers and holding the jaws in parallel relation to each other, a socket sleeve on each lever, a shank on each jaw for engagement inthe socket sleeve, catches carried by the sleeves for detachably engaging the shanks, and extensions adapted for detachable engagement with the sleeves and jaws for increasing the length of said levers.

5. A valve lifter comprising a pair of le vers, flat jaws detachably and reversibly connected with said levers, means carried by one lever and engaged by the other' lever for adjusting said levers and holding the jaws in parallel relation to each other, a socket sleeve on each lever, a shank on each jaw for engagement in the socket sleeve, catches carried by the sleeves for detachably engaging the Shanks, extensions adapted for detachable engagement with the sleeves and jaws for increasing the length of said levers, and a guide for said levers.

,6. A valve lifter comprising a pair of levers, flat jaws detachably and reversibly connected with said levers, means carried by one lev'er and engaged by the other lever for adjusting said levers and holding the jaws in parallel relation to each other, a socket sleeve on each lever, a shank on each jaw for engagement in the socket sleeve, catches carried by the sleeves for detachably engaging the shanks, extensions adapted for detachable engagement with the sleeves and jaws for increasing the length of said levers, a

guide for said levers, and means for actingI upon the first-named means to permit step by step movement tobe imparted to one of the levers. l

7. In a valve lifter, a pair of levers each formed with a major straight portion, a bend, and a straight handle extremity otset with respect to said major portion, toothed rack bars pivoted in one of said levers and slidably engaged in the other lever, ulcrum pins in said other lever andy engageable with the rack bars to hold the levers in adjusted parallel relation to each other, and jaws connected with said levers.

S. In a valve lifter, a pair or' levers each formed with a major straight portion, a bend, and a straight handle extremity oi set with respect to. said major portion, toothedY rack bars pivoted in one of said levers and slidably engaged in the other lever, fulcrum pins in said other lever and engageable with the rack bars to hold the levers in adjusted parallel relation to each other, jaws connected with said levers, and a slide carried by one of the levers and acting upon one of the rack bars for disengaging it from the companion fulcrum pin to permit the rocking of the levers for eHecting step by step movement in the adjustments of the levers relative to each other.

9. In a valve lifter, a pair of levers each formed with a major straight portion, a bend, and a straight handle extremity oli'- set with respect to said major portion, toothed rack bars pivoted in one of said levers and slidably engaged in the other lever, ulcrum pins in said other lever and engage able with the rack bars to hold the levers in adjusted parallel relation to each other, aws connected with said levers, a slide carried by one of the levers and acting upon one of the rack bars for disengaging it from the companion fulcrum pin to permit the rocking of the levers for e'lecting step by step movement in the adjustments of the levers relative to each other, and means on the levers for detachably locking the jaws connected therewith.

10. In a valve lifter, a pair of levers each formed with a major straight portion, a bend, and a straight handle extremity 0E-4 set with respect to said major portion,

toothed rack bars pivoted in one of said levers and slidably engaged in the other lever, fulcrum pins in said other lever and engageable with the rack bars to hold the levers in adjusted parallel relationto each other, jaws connected with said levers, a slide carried by one of the levers and acting upon cne of the rack bars for disengaging it from the companion ulcrum pin to permit the rocking of the levers for eecting step by step movement in the adjustments of the levers relative to each other, means on the levers for detachably locking the jaws connected therewith, and a stop on one of the rack bars to limit the separation of the levers in the adjustments thereof.

l1. In a valve lifter, a pair of levers each formed with a major straight portion, a bend, and a straight handle extremity 0E- set with respect to said major portion, toothed rack bars pivoted in one of said levers and slidably engaged in the other lever, :Fulcrum pins in said other lever and engageable with the rack bars to hold the levers in adjusted parallel relation to each other, jaws connected with said levers, a slide carried by one ci the levers and acting upon one of the rack bars for disengaging it from the companion ulcrum pin to permit the rocking of the levers for eecting step by step movement in the adjustments of the levers relative to each other, means on the levers for detachably locking the jaws connected therewith, a stop on one of the rack bars to limit the separation of the levers in the adjustments thereof, and a guide pin fixed in one lever and slidably engaged with the other lever.

l2. In a valve lifter, a pair of levers each formed with a major straight portion, a bend, and a straight handle extremity oset with respect to said major portion, toothed rack bars pivoted in one of said levers and slidably engaged in the other lever, fulcrum pins in said other lever and engageable with the rack bars to hold the levers in adjusted parallel relation to each other, jaws connected with said levers, a slide carried by one of the levers and acting upon one of the rack bars for disengaging it from the companion fulcrum pin t0 permit the rocking of the levers for effecting step-by-step movement in the adjustments of the levers relative to each other, means on the levers for detachably locking the jaws connected therewith, a stop on one of the rack bars to limit the separation of the levers in the adjustments thereof, a guide pin fixed in one lever and slidably engaged with the other lever, and means for resiliently holding the racl bars in engagement with the ulcrum pins.

13. In a valve lifter embodying a pair of coopera-ting members, one of said members having a reduced end, a socket sleeve fitted llO to said end, a catch carried by said sleeve, and a jaw having a shank detachably engaged in the socket of said sleeve and held by said catch.

14. A valve lifter comprising a pair of levers, jaws detachably connected with the levers at one end thereof, toothed rack bars carried by one lever and engaged by the second lever for `adjusting said levers parallel to each other, and means carried by the second lever for actuating the adjustment of the levers, said means being operable from that end of the lifter which is opposite the jaws.

15. A valve lifter comprising a pair of levers, jaws detachably connected with the levers at one end thereof, toothed rack bars carried by one lever and engaged by the second lever for adjusting said levers parallel to each other, a slotted slide mounted on the second lever, means on that lever for securing the slide and guiding the same in its movements upon the lever, said slide abutting at one end against the nearest rack bar and having a thumbpiece at its other end, the slide providing means whereby the rack bar may be released from engagement with the second lever.

16. A valve lifter comprising a pair of levers having jaws, toothed rack bars pivoted upon one lever and engaged by the second lever for adjusting said bars parallel to each other, said bars extending without the levers, and springs connected with one end of each of the rack bars by which the opposite ends are normally held into engagement with the second lever.

17. In a valve lifter, the combination of a member having a socket sleeve removably fitted to one end, a catch carried by said socket sleeve, a screw having a coiled spring on which said catch is mounted, and a jaw having a shank detachably engaged in the socket of said sleeve and held by said catch.

18. A valve lifter comprising a pairpf levers having jaws, rack bars pivoted to one lever and engaged by the other lever for adjusting said levers and their jaws parallel to each other, spring means for said rack bars, and means carried by one of the levers operating against one of the rack bars for effecting the adjustment of the levers.

In testimony that I claim the foregoing as my own, I have hereto aiiXed my signature in the presence of two witnesses.

FRANK A. PEQUEGNAT.

Witnesses:

R. F. LILLARD, D. F. VELZY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of latents, Washington, 1D. (2. 

